Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:31 2012 Optimize a model with 1 rows, 167 columns and 167 nonzeros Model has 142 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 143 rows, 284 columns, 568 nonzeros Variable types: 0 continuous, 284 integer (283 binary) Found heuristic solution: objective 37.0000000 Root relaxation: objective 0.000000e+00, 170 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 38 37.00000 0.00000 100% - 0s 0 0 0.00000 0 22 37.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 18.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 14.00000 0.00000 100% - 0s 0 0 0.00000 0 15 14.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 6.00000 0.00000 100% - 0s 0 0 0.00000 0 7 6.00000 0.00000 100% - 0s 0 0 0.00000 0 11 6.00000 0.00000 100% - 0s 0 0 0.00000 0 10 6.00000 0.00000 100% - 0s 0 0 0.00000 0 17 6.00000 0.00000 100% - 0s 0 0 0.00000 0 16 6.00000 0.00000 100% - 0s 0 0 0.00000 0 7 6.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 5.00000 0.00000 100% - 0s 0 0 0.00000 0 9 5.00000 0.00000 100% - 0s 0 0 0.00000 0 7 5.00000 0.00000 100% - 0s 0 0 0.00000 0 14 5.00000 0.00000 100% - 0s 0 0 0.00000 0 14 5.00000 0.00000 100% - 0s 0 2 0.00000 0 14 5.00000 0.00000 100% - 0s H 27 25 4.0000000 0.00000 100% 1.4 0s * 562 0 15 3.0000000 3.00000 0.0% 26.9 0s Cutting planes: Cover: 251 MIR: 1 Explored 563 nodes (15936 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%